Garmin Vivosmart HR vs. Garmin 645 Music vs. Garmin Chronos vs. Fitbit Alta HR vs. Polar A370

 
Vivosmart HR
645 Music
Chronos
Alta HR
A370
 GarminVivosmart HRRemove Buy NowGarmin645 MusicRemove Buy NowGarminChronosRemove Buy NowFitbitAlta HRRemove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$170$450$1500$150$179.95
Release20152018201820172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days8 days7 daysUp to 3 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 68240 x 240218 x 218128 x 36160 x 80
Size1.08 inches1.2 inches1.2 inches1.4 inches1.18 inches
Touch
Typen/aMIPMIPOLEDTFT LCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM10 ATMWR30

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OS
Apps
Music

All Wearables